1. The middle depths of a body of water, between the surface and the bottom; the water column at intermediate depths.
Usage: Usually used in plural or as a mass noun; Common in oceanography and marine biology

Examples

• Fish species in the midwaters migrate vertically each day.
• The research team collected samples from the midwaters of the Atlantic Ocean.
• Sunlight penetrates the midwaters but becomes increasingly dim with depth.
• Many organisms in the midwaters have adapted to low-light conditions.
• The midwaters support a diverse ecosystem of plankton and small fish.